恒低门尼粘度混合橡胶的研制

Development of Constant and Low Mooney Viscosity Hybrid Rubber

以子午线轮胎橡胶(天然橡胶)为主胶种,全乳胶等外标胶、胶清胶、异戊橡胶和顺丁橡胶为辅胶种,通过密炼机干法混炼制备恒低门尼粘度的混合橡胶。结果表明:混合橡胶的门尼粘度低且恒定,混合橡胶可以保存8个月以上;与马来西亚天然橡胶CV60相比,混合橡胶的门尼粘度变化率较低,拉伸强度较高,其他性能相当。混合橡胶可以满足国内橡胶制品客户的要求。

Using radial tire rubber（natural rubber） as the main rubber material,and substandard rubber,skim rubber,isoprene rubber and butadiene rubber as the auxiliary rubber varieties,the hybrid rubber with constant and low Mooney viscosity was prepared by dry mixing with inner mixer. The results showed that,the Mooney viscosity of the hybrid rubber was low and constant,which could be kept for more than 8 months. Compared with natural rubber CV60 from Malaysia,the change rate of the Mooney viscosity of the hybrid rubber was lower,the tensile strength was higher,and other performances were equivalent. The hybrid rubber could meet the requirements of domestic rubber products.